Bathtub



FIG. 1 is a top perspective view of a bathtub;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevation view thereof, the left side being amirror image thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a bottom perspective view thereof.

The dashed lines showing of structural lines is included for the purposeof illustrating non-claimed subject-matter and forms no part of theclaimed design.

The ornamental design for a bathtub as shown and described.